1602139 has 8 divisors (see below), whose sum is σ = 1997568. Its totient is φ = 1248360.

The previous prime is 1602121. The next prime is 1602143. The reversal of 1602139 is 9312061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1602139 - 2⁷ = 1602011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10327 + ... + 10480.

It is an arithmetic number, because the mean of its divisors is an integer number (249696).

2^1602139 is an apocalyptic number.

1602139 is a deficient number, since it is larger than the sum of its proper divisors (395429).

1602139 is a wasteful number, since it uses less digits than its factorization.

1602139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20825.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1602139 is about 1265.7562956588. The cubic root of 1602139 is about 117.0128069357.

The spelling of 1602139 in words is "one million, six hundred two thousand, one hundred thirty-nine".